validating numbers in a textbox

[Binary0110]

I'm writing a program that converts a number in a textbox from one metric unit to another. I need to write an if statement that will validate that what is in the textbox is a numer and if it isn't returns a message box. any suggestions with code samples would be appreciated. BINARY

[S Senthil Kumar]

Try the Parse method in the Int32 class. Something like

Dim number as Int32
Try
number = Int32.Parse(textBox.Text)
Catch
// Show Messagebox here

Regards Senthil _____________________________ My Blog | My Articles | WinMacro

[Christian Graus]

Why not do it the smart way and use one of the many controls on this site that give you a text box which only accepts numbers ? Otherwise, I'd use a regular expression to pull a number out before I did a try/catch, that's just ugly. Christian Graus - Microsoft MVP - C++

[Binary0110]

I ended up using IsNumeric to validate the textbox. Thanx all. BINARY

[devitj]

try this IsNumeric("$1") returns true this is wrong.